Company lists · Data refreshed September 2026

Top 25 IT services companies based in Baltimore, United States

Name: IT services companies based in Baltimore, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 54 companies tracked

RevenueBase identified 54 IT services companies headquartered in Baltimore, United States as of September 2026 and tracks 695 professional contacts across them, including 247 with verified work emails. New York is the largest hub.

This list covers IT services companies headquartered in Baltimore, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

54Companies

695Contacts tracked

247Verified emails

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The 25 largest IT services companies based in Baltimore, United States

Ranked by team size

Top 25 of 54 IT services companies based in Baltimore, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT services companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Serigor INCStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	51-200	175
	“Serigor provides IT Services and IT staffing to Government and Commercial enterprises of all sizes.” Source: company website · checked Sep 4, 2026
2	Syscom, INCIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	72
	“CAREERS Headquartered in Baltimore, Maryland, SYSCOM, Inc.” Source: company website · checked Sep 4, 2026
3	IntellicompStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	51-200	66
	“We Manage your IT needs so you don't have to.” Source: company website · checked Sep 4, 2026
4	MethoddataIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	51-200	46
	“MethodData takes the time to understand what you're building before we start, so that you end up with a solution that solves what you need.” Source: company website · checked Sep 4, 2026
5	QUE Technology GroupIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	44
	“Founded in 2010, Que Technology Group (QTG), Inc.” Source: company website · checked Sep 4, 2026
6	Visionary Technologies, INCIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	34
	“Visionary Technologies is a Technology Consulting firm headquartered in the Baltimore area which services businesses of all sizes throughout Maryland, D.C, and Virginia.” Source: company website · checked Sep 4, 2026
7	Global CI Global Commerce & Information, INCIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	51-200	25
	“Global Commerce & Information, Inc.” Source: company website · checked Sep 4, 2026
8	Sagecor SolutionsIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	24
	“Sagecor is a complete engineering services company that employs top-level talent who possess the expertise to provide customers with true full-lifecycle System Engineering…” Source: company website · checked Sep 4, 2026
9	Femdel LLCIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	20
	“Femdel has become an innovative leader in the information technology industry.” Source: company website · checked Sep 4, 2026
10	Lucidus SolutionsIndirect evidence	Baltimore, United StatesHQ checked Sep 4, 2026	11-50	15
	“Lucidus Solutions (Lucidus) is an Information Technology company that has earned a reputation for providing exceptional services and support to clients since our founding in 2006.” Source: company website · checked Sep 4, 2026
11	Davis Unlimited Information Technologies, Inc. DuitIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	14
	“Founded in 2010 by a United States Navy Veteran and a federal government employee, DUIT is a woman owned and minority owned information technology company that has quickly emerged…” Source: company website · checked Sep 4, 2026
12	SOS Tech GroupStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	10
	“SOS Technology Group is a full-service IT consulting company focused on delivering IT Services and Security Solutions to businesses across the USA.” Source: company website · checked Sep 4, 2026
13	Charm City NetworksIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	7
	“Charm City Networks has delivered affordable network support, repairs, and consulting to business clients around the Baltimore region, and in 2009 established our first office and…” Source: company website · checked Sep 4, 2026
14	Horsetail TechIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	7
	“Welcome To Horsetail Tech!” Source: company website · checked Sep 4, 2026
15	Bluestar Technologies INCStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	51-200	6
	“At Blue Star Technologies, IT services provide Maryland and Mid-Atlantic businesses with the most appropriate design, installation, and management options no matter the facility…” Source: company website · checked Sep 4, 2026
16	Improve Your I.TStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	11-50	5
	“Improve Your IT, a ManagedCIO company, is your remote help desk focused on CIO services such as IT Monitoring, IT Budgeting, IT Strategic Planning, IT Analysis, and IT Project…” Source: company website · checked Sep 4, 2026
17	NetquestStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	5
	“NetQuest provides IT and network support to businesses in need of a complete IT solution for their network, hardware and vendor support.” Source: company website · checked Sep 4, 2026
18	Global Harvest NetworksIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	4
	“Global Harvest Networks (GHN) has been serving businesses in the Maryland, Virginia, and Washington D.C.” Source: company website · checked Sep 4, 2026
19	RYE TechStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	4
	“At RYE Tech, we pride ourselves on our advanced perspective and innovative approach to management consulting services and IT solutions.” Source: company website · checked Sep 4, 2026
20	Digital GeekIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	4
	“At Digital Geek we understand the mechanics of business as well as technology.” Source: company website · checked Sep 4, 2026
21	Hands Of Support Computer Services, VsbeStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	1
	“From deploying desktops with new software, systems, and applications to taking one phone call on a printer problem, Hands of Support certified IT professionals covers the entire…” Source: company website · checked Sep 4, 2026
22	Nairnstech, LLCStrong evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	1
	“Software Development, and IT Consulting firm for all business sizes.” Source: company website · checked Sep 4, 2026
23	AckatecIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	1
	“Ackatec provides security & information technology services for clients ranging from small, medium, large, public, non-profit, government to commercial business sectors.” Source: company website · checked Sep 4, 2026
24	Rosenthal Consulting LLCIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	1
	“Rosenthal Consulting LLC is an information technology and services company based out of United States.” Source: company website · checked Sep 4, 2026
25	Bainbridge Meyers, LLCIndirect evidence	Baltimore, MD, United StatesHQ checked Sep 4, 2026	1-10	1
	“We understand that no two businesses are alike.” Source: company website · checked Sep 4, 2026

Showing 25 of 54 IT services companies based in Baltimore, United States

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IT services companies based in Baltimore, United States at a glance

As of Sep 4, 2026

11-50Median size (employees)

New YorkLargest hub · 636 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Baltimore, over 54 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT services companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Baltimore, United States whose own description of what they do matches “IT services companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT services companies, and records with no verified work email. Companies headquartered outside Baltimore are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 247 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

IT services companies by metro in the United States

Frequently asked

How many IT services companies are there based in Baltimore, United States?

RevenueBase identified 54 IT services companies headquartered in Baltimore, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Serigor INC, headquartered in Baltimore, tops this list with the largest team on record.

Which city has the most IT services companies?

New York leads with 636 headquartered companies, followed by Houston (408) and Austin (303).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 247 verified decision-maker contacts tracked across these 54 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.